As a key transmission component of a sewing machine, the rotary hook’s lubrication and maintenance directly affect equipment stability and stitching precision. Generally, the lubrication cycle is set at every 300 operating hours for a comprehensive maintenance service. This interval, based on industry practice and manufacturer recommendations, effectively reduces frictional wear.
The specific maintenance procedure includes thoroughly cleaning oil residue from the rotary hook surface, evenly applying specialized high-temperature lubricating oil to the bearings and gear components, and simultaneously inspecting the wear condition of the hook tip.
Regular lubrication also helps prevent common issues such as abnormal noise from the rotary hook, ensuring a smooth sewing process. In addition, the maintenance cycle should be adjusted according to equipment usage frequency—for example, shortening it to 250 hours under high-intensity operation can further enhance maintenance effectiveness.